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Finding the Fourth Proportional to 98,090.63, 147,134.91 and 64,958.93

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Solution

The fourth proportional to 98,090.63, 147,134.91 and 64,958.93 is: 97,437.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,090.63 : 147,134.91 = 64,958.93 : x
  2. Step 2: Convert to fraction form
    98,090.63/147,134.91 = 64,958.93/x
  3. Step 3: Cross multiply
    98,090.63x = 147,134.91 × 64,958.93
  4. Step 4: Simplify right side
    98,090.63x = 9,557,725,767.49
  5. Step 5: Solve for x
    x = 9,557,725,767.49/98,090.63
  6. Step 6: Final answer
    x = 97,437.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.